Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Current assets
Cash and cash equivalents	$ 1,764	$ 2,724
Available-for-sale securities	207	204
Accounts receivable, net	1,697	1,504
Inventories	1,809	1,653
Prepaid expenses and other current assets	161	131
Total current assets	5,638	6,216
Property, plant and equipment, net	8,604	8,605
Operating lease right-of-use assets	763	798
Goodwill	1,347	1,314
Customer relationships, net	720	743
Other intangible assets, net	429	439
Equity method investments	1,040	1,062
Other assets, net	734	784
Total assets	19,275	19,961
Current liabilities
Accounts payable	857	783
Accrued and other liabilities	1,513	1,490
Current portion of long-term debt, net	0	497
Total current liabilities	2,370	2,770
Long-term debt, net	5,064	5,087
Deferred income taxes	1,246	1,343
Pension and other post-retirement benefits	270	286
Operating lease liabilities	657	688
Other liabilities	503	492
Total liabilities	10,110	10,666
Commitments and contingencies (Note 14)
Stockholders' equity
Preferred stock, $0.01 par value, 50,000,000 shares authorized; no shares issued and outstanding	0	0
Common stock, $0.01 par value, 300,000,000 shares authorized; 134,651,380 and 134,651,380 shares issued at September 30, 2026 and December 31, 2025, respectively	1	1
Common stock, held in treasury, at cost; 6,794,579 and 6,740,232 shares at September 30, 2026 and December 31, 2025, respectively	(530)	(513)
Additional paid-in capital	709	683
Retained earnings	8,593	8,701
Accumulated other comprehensive loss	(114)	(80)
Total Westlake Corporation stockholders' equity	8,659	8,792
Noncontrolling interests	506	503
Total equity	9,165	9,295
Total liabilities and equity	$ 19,275	$ 19,961

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).